Acer AL1713bm AL1713 Service Guide - Page 29

2.3 No picture & Backlight on No picture & Backlight on YES Touch OSD Menu Button, Does OSD display? YES Change FL301, FL302 & FL303 NO Are there R.G..B signal in U401 #135, #131 #127? YES NO Is there clock signal in U401 #102? Change X401? YES Check DC 5V OF CN601#1,#2,#3 YES NO Check Q601 circuit Are there data out U401#48~#57, #64~#73? NO Change U401 END 28